MINIATURE Coupler

Working Temperature: depending on medium
-4°F up to +210°F (NBR)
-40°F up to +250/300°F (EPDM)
+5°F up to +400°F (FKM)
+32°F up to +600°F (FFKM)
At a temperature below -4°F and above +300°F special seals are available.

The 91 Series is a variation of the 20 Series Couplers. The valve has been shortened in respect that the plug seals before the Coupler valve opens. In spite of the short valve, the well-proven, single hand operation is retained as the ball-lock is replaced by a pin-lock. This extends the external diameter of the sleeve from 10 to 13 mm. This series is also available without a valve in a Straight-Thru design. For Straight-Thru Couplers, please change the part number from 21KA to 21KF when ordering.

Material

COUPLER

STANDARD
MATERIAL

NICKEL
PLATED

AISI
301

AISI
316 L

Back Body

Brass

Brass,Nickel plated

AISI 303

AISI 316 L

Valve Body

Brass

Brass,Nickel plated

AISI 303

AISI 316 L

Sleeve

Brass

Brass,Nickel plated

AISI 303

AISI 316 L

Valve

Brass

Brass

AISI 303

AISI 316 L

Spring & Locking Ring

AISI 301

AISI 301

AISI 301

AISI 316 TI

Locking Balls

AISI 420

AISI 420

AISI 420

AISI 420

Seals

NBR

NBR

FKM

FKM

PLUG

Brass

Brass,Nickel plated

AISI 303

AISI 316 L

INTERCHANGE

RECTUS 90

CAMOZZI

EWO

KANI

Series 21 KA Couplers

Coupler
Type

Connection(A)

Hex(SW)

Length
(L)

Depth(D)

L1

L2

Hex1(SW1)

B

G

Standard
Design
P/N

Nickel
Plated
P/N

AISI
303
P/N

AISI
316 L
P/N

Male
Thread

1/8" NPT

.55

1.49

.63

.35

21KA AN10 MPX

21KA AN10 MPN

21KA AN10 RVX

21KA AN10 EVX

1/4" NPT

.55

1.61

.63

.47

21KA AN13 MPX

21KA AN13 MPN

21KA AN13 RVX

21KA AN13 EVX

3/8" NPT

.66

1.61

.63

.47

21KA AN17 MPX

21KA AN17 MPN

21KA AN17 RVX

21KA AN17 EVX

Female
Thread

1/8" NPSF

.55

1.55

.63

.47

21KA IN10 MPX

21KA IN10 MPN

21KA IN10 RVX

21KA IN10 EVX

1/4" NPSF

.66

1.77

.63

.51

21KA IN13 MPX

21KA IN13 MPN

21KA IN13 RVX

21KA IN13 EVX

3/8" NPSF

.74

1.88

.63

.55

21KA IN17 MPX

21KA IN17 MPN

21KA IN17 RVX

21KA IN17 EVX

Hose
Barb

5/32"

.55

1.81

.63

.66

21KA TF04 MPX

21KA TF04 MPN

21KA TF04 RVX

21KA TF04 EVX

3/16"

.55

1.81

.63

.66

21KA TF05 MPX

21KA TF05 MPN

21KA TF05 RVX

21KA TF05 EVX

1/4"

.55

1.81

.63

.66

21KA TF06 MPX

21KA TF06 MPN

21KA TF06 RVX

21KA TF06 EVX

5/16"

.55

1.81

.63

.66

21KA TF08 MPX

21KA TF08 MPN

21KA TF08 RVX

21KA TF08 EVX

3/8"

.55

1.81

.63

.66

21KA TF10 MPX

21KA TF10 MPN

21KA TF10 RVX

21KA TF10 EVX

Push-Lock Hose Barb

1/4" P.L.

.55

1.96

.63

.78

21KA TP06 MPX

21KA TP06 MPN

21KA TP06 RVX

21KA TP06 EVX

Plastic Hose
Connection

5/32" x 1/4"

.55

1.69

.63

.27

.27

21KA KO46 MPX

21KA KO46 MPN

21KA KO46 RVX

21KA KO46 EVX

1/4" x 5/16"

.55

1.65

.63

.27

.23

21KA KO08 MPX

21KA KO08 MPN

21KA KO08 RVX

21KA KO08 EVX

Panel Mount,
Plastic Hose Conn.

5/32" x 1/4"

.55

2.12

.63

.27

.70

.55

.15

M 10x1

21KA KS46 MPX

21KA KS46 MPN

21KA KS46 RVX

21KA KS46 EVX

1/4" x 5/16"

.66

2.12

.63

.27

.70

.66

.15

M 12x1

21KA KS08 MPX

21KA KS08 MPN

21KA KS08 RVX

21KA KS08 EVX

Front Panel Install.
Plastic Hose Conn.

5/32" x 1/4"

.86

1.65

.94

.27

.62

.94

.19

M 20x1

21KA KE46 MPX

21KA KE46 MPN

21KA KE46 RVX

21KA KE46 EVX

1/4" x 5/16"

.86

1.65

.94

.27

.62

.94

.19

M 20x1

21KA KE08 MPX

21KA KE08 MPN

21KA KE08 RVX

21KA KE08 EVX

Front Panel Install.
Hose Barb
Panel Mount

5/32"

.86

1.81

.94

.66

.62

.94

.19

M 20x1

21KA TE04 MPX

21KA TE04 MPN

21KA TE04 RVX

21KA TE04 EVX

1/4"

.86

1.81

.94

.66

.62

.94

.19

M 20x1

21KA TE06 MPX

21KA TE06 MPN

21KA TE06 RVX

21KA TE06 EVX

5/16"

.86

1.81

.94

.66

.62

.94

.19

M 20x1

21KA TE08 MPX

21KA TE08 MPN

21KA TE08 RVX

21KA TE08 EVX

3/8"

.86

1.81

.94

.66

.62

.94

.19

M 20x1

21KA TE10 MPX

21KA TE10 MPN

21KA TE10 RVX

21KA TE10 EVX

Panel Mount
Hose Barb

5/32"

.55

2.36

.63

.66

.55

.55

.15

M 10x1

21KA TS04 MPX

21KA TS04 MPN

21KA TS04 RVX

21KA TS04 EVX

3/16"

.66

2.36

.63

.66

.55

.66

.15

M 12x1

21KA TS05 MPX

21KA TS05 MPN

21KA TS05 RVX

21KA TS05 EVX

1/4"

.66

2.36

.63

.66

.55

.66

.15

M 12x1

21KA TS06 MPX

21KA TS06 MPN

21KA TS06 RVX

21KA TS06 EVX

5/16"

.66

2.36

.63

.66

.55

.66

.15

M 12x1

21KA TS08 MPX

21KA TS08 MPN

21KA TS08 RVX

21KA TS08 EVX

Plastic Hose Conn.
w/ Spring Guard

5/32" x 1/4"

.55

4.92

.63

.27

.27

21KA KK46 MPX

21KA KK46 MPN

21KA KK46 RVX

21KA KK46 EVX

1/4" x 5/16"

.55

5.11

.63

.27

.23

21KA KK08 MPX

21KA KK08 MPN

21KA KK08 RVX

21KA KK08 EVX

Male Thread
Coupler

Female Thread
Coupler

Hose Barb
Coupler

Push-Lock Hose
Barb Coupler

Plastic Hose
Connection

Panel Mount Plastic
Hose Connect. Coupler

Front Panel Install Plastic
Hose Connect. Coupler

Front Panel Install Hose
Barb Panel Mount

Panel Mount Hose
Barb Coupler

Plastic Hose Connect. w/
Spring Guard Coupler

Series 21 SF Plugs

Plug
Type

Connection(A)

Hex(SW)

Length
(L)

Depth(D)

L1

L2

Hex1(SW1)

B

G

Standard
Design
P/N

Nickel
Plated
P/N

AISI
303
P/N

AISI
316 L
P/N

Hose Barb

5/32"

1.26

.35

.66

21SF TF04 MXX

21SF TF04 MXN

21SF TF04 RXX

21SF TF04 EXX

3/16"

1.26

.35

.66

21SF TF05 MXX

21SF TF05 MXN

21SF TF05 RXX

21SF TF05 EXX

1/4"

1.26

.35

.66

21SF TF06 MXX

21SF TF06 MXN

21SF TF06 RXX

21SF TF06 EXX

5/16"

1.26

.35

.66

21SF TF08 MXX

21SF TF08 MXN

21SF TF08 RXX

21SF TF08 EXX

3/8"

1.29

.47

.66

21SF TF10 MXX

21SF TF10 MXN

21SF TF10 RXX

21SF TF10 EXX

Push-Lock
Hose Barb

1/4" P.L.

.36

.16

.20

21SF TP06 MXX

21SF TP06 MXN

21SF TP06 RXX

21SF TP06 EXX

Plastic Hose
Connection

5/32" x 1/4"

1.26

.39

.23

M 10x1

21SF KO46 MXX

21SF KO46 MXN

21SF KO46 RXX

21SF KO46 EXX

1/4" x 5/16"

1.26

.47

.23

M 12x1

21SF KO08 MXX

21SF KO08 MXN

21SF KO08 RXX

21SF KO08 EXX

Panel Mount Plastic Hose Connection

5/32" x 1/4"

.55

1.73

.55

.71

.55

.16

M 10x1

21SF KS46 MXX

21SF KS46 MXN

21SF KS46 RXX

21SF KS46 EXX

1/4" x 5/16"

.55

1.73

.27

.70

.66

.15

M 12x1

21SF KS08 MXX

21SF KS08 MXN

21SF KS08 RXX

21SF KS08 EXX

Panel Mount,
Hose Barb

5/32"

.55

1.96

.66

.55

.55

.15

M 10x1

21SF TS04 MXX

21SF TS04 MXN

21SF TS04 RXX

21SF TS04 EXX

3/16"

1.96

.66

.55

.66

.15

M 12x1

21SF TS05 MXX

21SF TS05 MXN

21SF TS05 RXX

21SF TS05 EXX

1/4"

.55

1.96

.66

.55

.66

.15

M 12x1

21SF TS06 MXX

21SF TS06 MXN

21SF TS06 RXX

21SF TS06 EXX

5/16"

.55

1.96

.66

.55

.66

.15

M 12x1

21SF TS08 MXX

21SF TS08 MXN

21SF TS08 RXX

21SF TS08 EXX

3/8"

.55

1.96

.66

.55

.74

.15

M 14x1

21SF TS10 MXX

21SF TS10 MXN

21SF TS10 RXX

21SF TS10 EXX

Plastic Hose Conn.
w/ Spring Guard

5/32" x 1/4"

4.52

.39

.23

.23

M 10x1

21SF KK46 MXX

21SF KK46 MXN

21SF KK46 RXX

21SF KK46 EXX

1/4" x 5/16

4.72

.47

.23

.23

M 12x1

21SF KK08 MXX

21SF KK08 MXN

21SF KK08 RXX

21SF KK08 EXX

Male Thread

1/8" NPT

.43

1.06

.35

21SF AN10 MXX

21SF AN10 MXN

21SF AN10 RXX

21SF AN10 EXX

1/4" NPT

.55

1.20

.47

21SF AN13 MXX

21SF AN13 MXN

21SF AN13 RXX

21SF AN13 EXX

3/8" NPT

.66

1.22

.47

21SF AN17 MXX

21SF AN17 MXN

21SF AN17 RXX

21SF AN17 EXX

Female Thread

1/8" NPSF

.55

1.14

.35

21SF IN10 MXX

21SF IN10 MXN

21SF IN10 RXX

21SF IN10 EXX

1/4" NPSF

.66

1.33

.51

21SF IN13 MXX

21SF IN13 MXN

21SF IN13 RXX

21SF IN13 EXX

Hose Barb
Plug

Push-Lock Hose
Barb Plug

Plastic Hose
Connect. Plug

Panel Mount Plastic
Hose Connect. Plug

Panel Mount Hose
Barb Plug

Plastic Hose Connect.
w/ Spring Guard Plug

Male Thread
Plug

Female Thread
Plug

Why Choose Nycoil?

Nycoil, since its inception in 1958, has recognized the importance of Premier Customer Service, Quality Products and Quick Delivery. We design products that provide actual solutions to real problems. From the introduction of the original Self-Storing Air Hose to our Ultra-Lite Superbraid Tubing and state of the art Poly-Matic Push-To-Connect Fittings, Nycoil has become an industry leader in the Fluid Power and Pneumatic Markets. Our products are designed to last longer, be lighter and make installation and operator handling easier. We offer tubing, hoses, fittings, and quick couplers to service your pneumatic needs.